Mr. Boll's movie making power lies on that single fact that he is sponsored by Germany. That said loophole. And no, he didn't figured it out by himself, people put him there for a reason.
As far as business is concerned, ANY popularity is popularity.
Just think about it, there is no movie enthusiast or gamer on Earth, who doesn't know Uwe "Movie Killer" Boll. By making these outrageously horrifying movies, more and more people will watch them for all the wrong reasons. And as any controversial celebrity out there, he gets fame and fortune for all the wrong reasons, too. And no, he won't stop. Why should he? He is widely popular, he gets a sick amount of dosh to make movie disasters, and he brings home fat stacks of cash for all this. I don't say I agree with him, but I understand...
The only thing that makes me wanna torture him, mutilate him, burn him, resuscitate him, torture him some more until he dies, then go to Hell and torture his eternal soul until the end of times, is that he picked my topic for his godawful movies. He should've picked art films, animal movies or documentaries, but no, he picked goddamn GAMES, and for that, he should pay.... with blood...